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17
Difficult arterial U- turns [ 10]
IDEAL LOCATION
Bowties should be considered at arterials where high through volumes conflict with
moderate to low cross street and left turn volumes. Design locations must be relatively far
apart [ 10].
Superstreet
Superstreet designs change four- approach intersections into two independent
three- approach intersections by requiring cross street through and left turn traffic both to
and from the main arterial to use directional crossovers. This allows each direction to have
its own signal timing [ 10].
ADVANTAGES
Reduced delay for through arterial traffic and for one pair of left turns
Reduced stops for through arterial traffic
Near perfect two- way progression at all times with any signal spacing for through
arterial traffic
Fewer threats to crossing pedestrians
Reduced and separated conflict points [ 10]
DISADVANTAGES
Driver and pedestrian confusion
Increased delay for cross street through traffic and for one pair of left turns
Increased travel distances for cross street through traffic and for one pair left turns
Slow two- stage crossing of arterial for pedestrians
Additional right- of- way along the arterial [ 10]
IDEAL LOCATION
Consider where high arterial through volumes conflict with moderate to low cross
street through volumes. Design suffers from the same restrictions as Median U- turn:
arterials with narrow medians [ 10].
Jughandle
Jughandles utilize ramps diverging from the right side of the arterial to
accommodate all turns from the arterial. Ramps begin prior to the intersection. Left turns
from arterial use the ramp, then turn left on the cross street at the ramp terminal, which are
stop- controlled for left turns, and yield- controlled for right turns [ 10].
ADVANTAGES
Reduced delay for through arterial traffic
Reduced stops for through arterial traffic
Easier progression for through arterial traffic
Narrower right- of- way needed along the arterial

17
Difficult arterial U- turns [ 10]
IDEAL LOCATION
Bowties should be considered at arterials where high through volumes conflict with
moderate to low cross street and left turn volumes. Design locations must be relatively far
apart [ 10].
Superstreet
Superstreet designs change four- approach intersections into two independent
three- approach intersections by requiring cross street through and left turn traffic both to
and from the main arterial to use directional crossovers. This allows each direction to have
its own signal timing [ 10].
ADVANTAGES
Reduced delay for through arterial traffic and for one pair of left turns
Reduced stops for through arterial traffic
Near perfect two- way progression at all times with any signal spacing for through
arterial traffic
Fewer threats to crossing pedestrians
Reduced and separated conflict points [ 10]
DISADVANTAGES
Driver and pedestrian confusion
Increased delay for cross street through traffic and for one pair of left turns
Increased travel distances for cross street through traffic and for one pair left turns
Slow two- stage crossing of arterial for pedestrians
Additional right- of- way along the arterial [ 10]
IDEAL LOCATION
Consider where high arterial through volumes conflict with moderate to low cross
street through volumes. Design suffers from the same restrictions as Median U- turn:
arterials with narrow medians [ 10].
Jughandle
Jughandles utilize ramps diverging from the right side of the arterial to
accommodate all turns from the arterial. Ramps begin prior to the intersection. Left turns
from arterial use the ramp, then turn left on the cross street at the ramp terminal, which are
stop- controlled for left turns, and yield- controlled for right turns [ 10].
ADVANTAGES
Reduced delay for through arterial traffic
Reduced stops for through arterial traffic
Easier progression for through arterial traffic
Narrower right- of- way needed along the arterial